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The mature motile male sex cell of an animal, by which the ovum is fertilized, typically having a compact head and one or more long flagella for swimming.
‘The testes in your body are continuously producing hundreds of millions of reproductive cells called spermatozoa.’
‘The seminal plasma of mammals is a complex fluid, which serves as a carrier for the spermatozoa in their journey from the male testes to their target, the female uterus.’
‘Mutated DNA can only be passed to the next generation if it is present in a germ cell such as spermatozoa and ova, each of which contribute half of the DNA of the new organism.’
‘We rather think of the latter as a new form of life to whose nature both the ovum and the spermatozoon have made significant contributions.’
‘Is it wrong to employ existing techniques of sperm filtration, separating androgenic from gynogenic spermatozoa, and fertilising eggs with the desired type?’